Solution to normal display of PNG transparent images in IE6

A text stamp of "successful transactions" was added to the company's website transaction information a few days ago. It was implemented using a transparent image in PNG format. Today, it is not displayed normally under IE6, transparency becomes opaque. I searched the internet and found the solution as follows:

function correctPNG()
{
for(var i=0; i<document.images.length; i++)
   {
var img = document.images[i]
var imgName = img.src.toUpperCase()
if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
   {
var imgID = (img.id) ? "id='" + img.id + "' " : ""
var imgClass = (img.className) ? "class='" + img.className + "' " : ""
var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
var imgStyle = "display:inline-block;" + img.style.cssText
if (img.align == "left") imgStyle = "float:left;" + imgStyle
if (img.align == "right") imgStyle = "float:right;" + imgStyle
if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
var strNewHTML = "<span " + imgID + imgClass + imgTitle
   + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
   + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
   + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>"
   img.outerHTML = strNewHTML
   i = i-1
   };
   };
};

if(navigator.userAgent.indexOf("MSIE")>-1)
{
window.attachEvent("onload", correctPNG);
};

Save the above JS Code as a JS file correctpng. JS, and then reference it on the required page.

<script src="correctpng.js" type="text/javascript"></script>